the importance of water hello,my name is cui xuerong,today i'm going to talk about the importance of water. water is very important for living things. without water there can be no life on earth. all animals and plants need water. man also needs water. water is found atmosteverywhere. even in the driest part of the world there is some water in the air. as we all have found out, water may be a solid, or a liquid or a gas.when it isa solid, it may be as hard as brick, when itis a liquid, you can pour it out of a container. when it is a gas, you cannot see or feel it. although about 70 percent of the earth's surface is covered with water, but with the rapid development of agriculture and industry, more and more water is needed. therefore, water is becoming scarce in many places. what's more, a lot of rivers and lakes are beginning polluted by the waste watcr from factories. fish can't live in them any longer. at the same time, thc waste water does great harm to people's health. in order to make rivers and lakes clean and prevent water from being polluted,we must do something to stop all sorts of pollution